Oakley police investigate at the home where an 11-year-old shot and killed himself in the 1300 block of Yosemite Circle in Oakley, Calif., on Wednesday, Jan. 22, 2014. (Susan Tripp Pollard/Bay Area News Group)

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Bystanders watch as emergency responders remain at the scene where the Oakley Police Department reports that an 11-year-old boy fatally shot himself on Wednesday, Jan. 22, 2014, on the in the 1300 block of Yosemite Circle in Oakley, Calif. (Susan Tripp Pollard/Bay Area News Group)